Saying "Goodbye" to mom and then "Guten tag" to your teacher, or managing to ask for a crayola roja instead of a red crayon, requires skills called "inhibition" and "task switching".

道别时对妈妈说 “Goodbye”，对老师说 “Guten tag”，或者要红色蜡笔时不说 “red crayon”，而说 “crayola roja”，这都需要调动“约束任务”和“切换任务”的技能。

Do not begin eating until the hostess starts or someone says 'guten appetit' (good appetite).

在女主人开始用餐或者某人说“好口福”之前，请不要开始进餐。